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Problems

155 problems

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Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 155 results

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TitleSolutionAcceptDifficultyTopics
209. Minimum Size Subarray SumVideo
Solution53.1%Medium
Array, Binary Search +2· 18 companies
238. Product of Array Except SelfVideo
Solution69.3%Medium
Array, Prefix Sum· 40 companies
253. Meeting Rooms IIVideoPremium
Solution52.6%Medium
Array, Greedy +4· 42 companies
304. Range Sum Query 2D - ImmutableVideo
Solution59.2%Medium
Array, Design +2· 10 companies
325. Maximum Size Subarray Sum Equals kVideoPremium
Solution50.8%Medium
Array, Hash Table +1· 8 companies
370. Range AdditionVideoPremium
Solution73.0%Medium
Array, Prefix Sum· 2 companies
497. Random Point in Non-overlapping RectanglesVideo
Solution40.8%Medium
Array, Binary Search +5· 2 companies
523. Continuous Subarray SumVideo
Solution31.3%Medium
Array, Hash Table +2· 9 companies
525. Contiguous ArrayVideo
Solution52.2%Medium
Array, Hash Table +1· 16 companies
528. Random Pick with WeightVideo
Solution49.0%Medium
Array, Binary Search +3· 26 companies
560. Subarray Sum Equals KVideo
Solution48.2%Medium
Array, Hash Table +1· 47 companies
713. Subarray Product Less Than KVideo
Solution54.8%Medium
Array, Binary Search +2· 20 companies
731. My Calendar IIVideo
Solution63.3%Medium
Array, Binary Search +4· 3 companies
813. Largest Sum of AveragesVideo
Solution55.5%Medium
Array, Dynamic Programming +1· 2 companies
848. Shifting LettersVideo
Solution46.1%Medium
Array, Prefix Sum +1· 3 companies
930. Binary Subarrays With SumVideo
Solution69.7%Medium
Array, Hash Table +2· 7 companies
974. Subarray Sums Divisible by KVideo
Solution56.7%Medium
Array, Hash Table +1· 11 companies
1004. Max Consecutive Ones IIIVideo
Solution68.6%Medium
Array, Binary Search +2· 20 companies
1094. Car PoolingVideo
Solution56.5%Medium
Array, Heap (Priority Queue) +3· 12 companies
1109. Corporate Flight BookingsVideo
Solution68.7%Medium
Array, Prefix Sum· 5 companies
1124. Longest Well-Performing IntervalVideo
Solution38.5%Medium
Array, Hash Table +3· 2 companies
1140. Stone Game IIVideo
Solution75.8%Medium
Array, Dynamic Programming +3· 5 companies
1177. Can Make Palindrome from SubstringVideo
Solution42.0%Medium
Array, Bit Manipulation +3· 1 company
1208. Get Equal Substrings Within BudgetVideo
Solution60.2%Medium
Binary Search, Prefix Sum +2· 4 companies
1248. Count Number of Nice SubarraysVideo
Solution75.5%Medium
Array, Hash Table +3· 9 companies
1292. Maximum Side Length of a Square with Sum Less than or Equal to ThresholdVideo
Solution65.4%Medium
Array, Binary Search +2· 4 companies
1310. XOR Queries of a SubarrayVideo
Solution78.1%Medium
Array, Bit Manipulation +1· 3 companies
1314. Matrix Block SumVideo
Solution77.0%Medium
Array, Matrix +1· 3 companies
1371. Find the Longest Substring Containing Vowels in Even CountsVideo
Solution75.7%Medium
Bit Manipulation, Hash Table +2· 6 companies
1423. Maximum Points You Can Obtain from CardsVideo
Solution58.1%Medium
Array, Prefix Sum +1· 11 companies
1442. Count Triplets That Can Form Two Arrays of Equal XORVideo
Solution84.9%Medium
Array, Bit Manipulation +3· 2 companies
1524. Number of Sub-arrays With Odd SumVideo
Solution55.7%Medium
Array, Dynamic Programming +2· 6 companies
1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals TargetVideo
Solution49.4%Medium
Array, Greedy +2· 1 company
1589. Maximum Sum Obtained of Any PermutationVideo
Solution41.7%Medium
Array, Greedy +2· 2 companies
1590. Make Sum Divisible by PVideo
Solution42.6%Medium
Array, Hash Table +1· 7 companies
1658. Minimum Operations to Reduce X to ZeroVideo
Solution45.0%Medium
Array, Binary Search +3· 4 companies
1664. Ways to Make a Fair ArrayVideo
Solution67.8%Medium
Array, Prefix Sum· 7 companies
1674. Minimum Moves to Make Array ComplementaryVideo
Solution65.2%Medium
Array, Hash Table +1· 5 companies
1685. Sum of Absolute Differences in a Sorted ArrayVideo
Solution68.2%Medium
Array, Math +1· 4 companies
1712. Ways to Split Array Into Three SubarraysVideo
Solution34.2%Medium
Array, Binary Search +2· 3 companies
1737. Change Minimum Characters to Satisfy One of Three ConditionsVideo
Solution38.4%Medium
Counting, Hash Table +2· 1 company
1738. Find Kth Largest XOR Coordinate ValueVideo
Solution64.3%Medium
Array, Bit Manipulation +6· 1 company
1744. Can You Eat Your Favorite Candy on Your Favorite Day?Video
Solution36.7%Medium
Array, Prefix Sum· 1 company
1769. Minimum Number of Operations to Move All Balls to Each BoxVideo
Solution90.1%Medium
Array, Prefix Sum +1· 6 companies
1829. Maximum XOR for Each QueryVideo
Solution84.7%Medium
Array, Bit Manipulation +1· 2 companies
1838. Frequency of the Most Frequent ElementVideo
Solution45.3%Medium
Array, Binary Search +4· 11 companies
1856. Maximum Subarray Min-ProductVideo
Solution40.7%Medium
Array, Monotonic Stack +2· 3 companies
1871. Jump Game VIIVideo
Solution35.4%Medium
Dynamic Programming, Prefix Sum +2· 4 companies
1878. Get Biggest Three Rhombus Sums in a GridVideo
Solution71.4%Medium
Array, Heap (Priority Queue) +4· 4 companies
1894. Find the Student that Will Replace the ChalkVideo
Solution53.2%Medium
Array, Binary Search +2· 2 companies
Showing 1–50 of 155